Science

Friday, 4 September 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Graphene
Graphene can be used in the biomedical field for diagnostic purposes.
It shows therapeutic potential as a drug carrier. It can also be used in tissue engineering because ...
Liver
Liver filters blood.
It breaks down toxic particles, such as drugs and alcohol. It also destroys old and damaged blood cells.
Earth
The length of the day on Earth is constantly increasing.
In the first million years of the Earth's existence, the day lasted only four hours. From the very b ...
Enceladus
Enceladus' atmosphere consists of water vapor (91%), nitrogen (4%), carbon dioxide (3.2%) and methane (1.7%).
Enceladus
Underneath the icy crust is an ocean of liquid water 75 kilometers deep.
Milky Way
Although not every galaxy has a supermassive black hole at its center, there is one in the center of the Milky Way.
This region, called Sagittarius A*, is a very bright and compact radio source with a mass of 3.7 million solar masses and a diameter of approximately 44 million kilometers.
Nicotine
Larger doses of nicotine cause permanent blocking of the nervous system.
Nicotine binds permanently to nicotinic receptors in nerve cells, disturbing their metabolism. Initi ...
Earth
The Earth formed from a proto-planetary disk around the Sun about 4.54 billion years ago.
For its first billion years, it was a hostile, harsh, rocky place where life did not exist. According to research, the first living organisms appeared in Earth's oceans about 3.5 billion years ago.
Aurora
In the language of the Sámi people (the native inhabitants of Lapland), the name of the aurora "guovssahasah" means "the sun shining in the sky in the morning or evening".
The Sámi people claimed that creating a song about the aurora borealis is dangerous and threatens to draw polar light on themselves, which bode inevitable death.
Deimos
Unlike Phobos, Deimos rises in the east and sets in the west of the Martian sky.